* Clean up blackhole routes when using kubenet ([#47572](https://github.com/kubernetes/kubernetes/pull/47572), [@justinsb](https://github.com/justinsb))

  * Maintain a cache of all instances, to fix problem with > 200 nodes with ELBs ([#47410](https://github.com/kubernetes/kubernetes/pull/47410), [@justinsb](https://github.com/justinsb))

- Fixed the disruption controller's PDB status synchronization to maintain all PDB conditions during an update. ([#122056](https://github.com/kubernetes/kubernetes/pull/122056), [@dhenkel92](https://github.com/dhenkel92)) [SIG Apps]

{CLASS_PREFIX}-${attachment}`)\n  }\n\n  getTipElement() {\n    this.tip = this.tip || $(this.config.template)[0]\n    return this.tip\n  }\n\n  setContent() {\n    const $tip = $(this.getTipElement())\n\n    // We use append for html objects to maintain js events\n    this.setElementContent($tip.find(SELECTOR_TITLE), this.getTitle())\n    let content = this._getContent()\n    if (typeof content === 'function') {\n      content = content.call(this.element)\n    }\n\n    this.setElementContent($t...

 color: #3f474e;\n}\n\n.dark-mode .border-dark {\n  border-color: #4b545c !important;\n}\n\n/*# sourceMappingURL=adminlte.css.map */","// Hover mixin and `$enable-hover-media-query` are deprecated.\n//\n// Originally added during our alphas and maintained during betas, this mixin was\n// designed to prevent `:hover` stickiness on iOS-an issue where hover styles\n// would persist after initial touch.\n//\n// For backward compatibility, we've kept these mixins and updated them to\n// always return...

   ([#123038](https://github.com/kubernetes/kubernetes/pull/123038), [@alculquicondor](https://github.com/alculquicondor))
- Fixed the disruption controller's PDB status synchronization to maintain all PDB conditions during an update.
   ([#122056](https://github.com/kubernetes/kubernetes/pull/122056), [@dhenkel92](https://github.com/dhenkel92))
- Improved scheduler performance when no scoring plugins were defined.

## Changelog since v1.16.11

## Changes by Kind

### API Change

- Fixed: log timestamps now include trailing zeros to maintain a fixed width ([#91207](https://github.com/kubernetes/kubernetes/pull/91207), [@iamchuckss](https://github.com/iamchuckss)) [SIG Apps and Node]

### Bug or Regression

- Kube-apiserver now maintains a Lease object to identify itself: 
  - The feature is under feature gate `APIServerIdentity`. 

* Upgraded and relaxed dependencies for package extras `all` (including new Uvicorn version), when you install `"fastapi[all]"`.
* New docs about how to [**Help Maintain FastAPI**](https://fastapi.tiangolo.com/help-fastapi/#help-maintain-fastapi).

### Features

* ⬆️ Upgrade and relax dependencies for extras "all". PR [#5634](https://github.com/tiangolo/fastapi/pull/5634) by [@tiangolo](https://github.com/tiangolo).

* Add ready replicas in Deployments ([#37959](https://github.com/kubernetes/kubernetes/pull/37959), [@kargakis](https://github.com/kargakis))
* Remove all MAINTAINER statements in Dockerfiles in the codebase as they are deprecated by docker ([#38927](https://github.com/kubernetes/kubernetes/pull/38927), [@luxas](https://github.com/luxas))

provides the Metrics API that is used by `kubectl top`, and horizontal pod autoscaler. Note that it doesn't include some features of Heapster, such as short term metrics for graphs in kube-dashboard and dedicated push sinks, which proved hard to maintain and scale. Clusters using Heapster for transferring metrics into long-term storage should consider using their metric solution's native Kubernetes support, if present, or should consider alternative solutions. ([#62328](https://github.com/kubern...